Right after the backup job starts, the following message is generated in the error log. Additionally, when I click on the Properties for a file and select Previous Versions, I am told that "There are no previous versions available". System Restore is enable for the drive in question, and Diskeeper shows the drive as VSS enabled. Log Name: Application Source: VSS Date: 10/9/2009 9:00:21 PM Event ID: 8194 Task Category: None Level: Error Keywords: Classic User: N/A Computer: gateway_laptop Description: Volume Shadow Copy Service error: Unexpected error querying for the IVssWriterCallback interface. hr = 0x80070005, Access is denied. . This is often caused by incorrect security settings in either the writer or requestor process. Operation: Gathering Writer Data Context: Writer Class Id: {e8132975-6f93-4464-a53e-1050253ae220} Writer Name: System Writer Writer Instance ID: {8cbd6458-afb6-4b51-a39f-230d1a840aad} Event Xml: <Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event"> <System> <Provider Name="VSS" /> <EventID Qualifiers="0">8194</EventID> <Level>2</Level> <Task>0</Task> <Keywords>0x80000000000000</Keywords> <TimeCreated SystemTime="2009-10-10T01:00:21.000000000Z" /> <EventRecordID>36381</EventRecordID> <Channel>Application</Channel> <Computer>gateway_laptop</Computer> <Security /> </System> <EventData> <Data>0x80070005, Access is denied. </Data> <Data> Operation: Gathering Writer Data Context: Writer Class Id: {e8132975-6f93-4464-a53e-1050253ae220} Writer Name: System Writer Writer Instance ID: {8cbd6458-afb6-4b51-a39f-230d1a840aad}</Data> <Binary>2D20436F64653A20575254575254494330303030313235312D2043616C6C3A20575254575254494330303030313230352D205049443A202030303030313833322D205449443A202030303030373538342D20434D443A2020433A5C57696E646F77735C73797374656D33325C737663686F73742E657865202D6B204E6574776F726B53657276696365202020202020202D20557365723A204E616D653A204E5420415554484F524954595C4E4554574F524B20534552564943452C205349443A532D312D352D3230</Binary> </EventData> </Event> Windows 7 Professional RTM 2 GB memory 160 HD Networked (wired and wireless)Gateway Laptop HP Officejet 6310 All-in One inkjet printer Verizon FIOS Internet Connection

Did you run Newsid.exe on the computer?Brian

I do not see this file in my computer - did a start menu search - not found. Ran Command Prompt as Admin - no such command. Note - should the VSS Shadow Copy service be starting automatically? I just look - it is set to automatic, but is not running. I also looked at some files that I update frequently during the day - there are no previous versions available. Event log shows entry - "The VSS service is shutting down due to idle timeout. " I am continuing to get the event log entry shown in my original post approximately 30 seconds after my nightly file backup kicks off. Found a post on another forum - problem appears to be linked to using the MOZY app for off site backups. I ran a Win 7 backup and the error did not appear. I ran a MOZY backup and it did. The MOZY backup did complete successfully and I am able to see the backed up files. However, I still do not see Previous Versions in file properties. I will open a new thread for this problem. Windows 7 Professional RTM 2 GB memory 160 HD Networked (wired and wireless)Gateway Laptop HP Officejet 6310 All-in One inkjet printer Verizon FIOS Internet Connection